Drop-light.



No. 760,533. PATENTED MAY 24, 1904. B. B. GROVE.

DROP LIGHT.

urmoumx FILED SEPT. 19, 1003. N0 HODEL.

3140 a ntoz Witnesses /Q#WM%M an, MW.

the drop-pipe.

UNITED STATES Patented May 24;, 1904.

PATENT OEEIcE.

ELMER E. GROVE, OF SPRINGFIELD, OHIO, ASSIGNOR TO THE GROVE MANUFACTURING COMPANY, OF SPRINGFIELD, OHIO, A OORPORA- TION OF OHIO.

DROP-LIGHT.

SPECIFICATION forming part of Letters Patent No. 760,533, dated May 24;, 1904.

Application filed September 19, 1903. Serial No. 173,778- (No model.)

To all Hill/O77? it 711/0141 concern:

Be it known that I, ELMER E. GROVE, a citizen of the United States, residing at Spring field, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Drop-Lights, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to drop-lights, and has for its object to provide a simple and inexpensive device of this character, which may be readily attached to any part of the ordinary gas-fixture or chandelier so as to be supported therefrom, and, which may be readily lowered when in use and raised out of the way when not in use.

To these ends my invention consists in certain novel features, which 1 will now proceed to describe and will then partlcularly point out in the claims.

In the'accompanying drawings, Figure 1 is a view in elevation of a gas-fixture having my improved drop-light applied thereto.

Fig. 2 is a view illustrating its attachment to another form of fixture. Fig. 3 is a plan view of the clamp and sleeve detached, the

lar detached, the drop-pipe being shown therein in section. Fig. 6 is a detail elevation showing the upper stop-collar in position on Fig. 7 is a detail perspective view of the clamping-arm detached; and 8 is a view similar to Fig. 4, illustrating a modified construction.

In the said drawings I have shown in Fig. 1 my invention as applied to a gas-fixture or;

chandelier having straight arms, the fixture being indicated at 1 and the straight arms at; 2, these latter being provided with the usuali burner 3 and stop-cock 4.

The attachment which constitutes my invention comprises a drop-pipe 5, made of metal and provided at its lower end with a suitable; burner 6, while its upper end is adaped to receive a flexible pipe 7, by means of which it is connected with one of the burners of the fixture. These parts may be of any suitable construction for their purpose. In connection with them I employ stop-collars on the drop-pipe and a guiding and supporting device cooperating therewith and connecting the drop-pipe with the gas-fixture. This guiding and supporting device is shown in detail in Figs. 3, 4, and 7 of the drawings, and it comprises a base 8, provided on one side with a guiding-sleeve 9 and on the other side with clamping devices. The guiding-sleeve fits upon the drop-pipe 5, and the aperture throughsaid sleeve is preferably made flaring or of increasing diameter both upward and downward from its center, so as to prevent said sleeve from binding on the pipe. From the other side of the base 8 there projects a fixed screw 11, on which travels a clamping-nut12, preferably a wing or thumb nut, as shown. 13 indicates the clamping-arm, (shown in detail in Fig. 7,) saidarm being providedwith a central aperture 1 1, made sufliciently large at its smaller end to pass freely over the screw 11 and flaring or increasing in diameter from said smaller end, so as to permit the arm to rock or tilt upon the screw. One end of the arm 13 is bent to form a toe 15, which is adapted to bear upon the base 8 and form a fulcrum for the clamping-arm. The other end of the arm is preferably curved or recessed, as shown at 16, so as to grip one of the pipesof the gas-fixture or chandelier and clamp the same firmly against the base 8 when r the thumb-nut 12 is tightened. Since the clamping-arm or aw is free to rotate or move laterally on the screw, the device may be applied to any part of a chandelier whether the part be vertical or horizontal, straight or curved,r.ari,d, as illustrations of thisI have connection with this device I employ on the upper portion-of the drop-pipe 5 a stop-collar 17 (Shown in detail in Fig. 6.) This stopcollar is preferably adjustable upon the droppipe, since its position determines the point where the burner is located when lowered. To this end the stop-collar is fitted to slide on the drop-pipe and is provided with a clamping-screw 18, threaded through the collar and adapted to bear upon the pipe to hold the collar in any position to which it may be adjusted. The clamping-screw 18 is preferably provided with an angular handle-piece 19 or with some other means by which it may be readily operated, since the position of the collar 17 may be required to be changed from time to time. The collar is provided with a tapering or conical portion 20, which fits within the correspondingly-tapered upper end of the aperture in'the sleeve 9, so as to hold the drop-pipe and its burner steadily in position when lowered. I also employ, in connection with the guiding and supporting device, a second stop-collar 21, mounted on the lower portion of the drop-pipe and adjustable thereon, being held after adjustment by a set-screw 22. Since this stop-collar merely determines the position of the drop-light when raised, itdoes 'the drop-pipe may be locked in its raised position, and to this end it is adapted to engage and interlock with some fixed part, as of the guiding and sustaining device. I prefer for this purpose the construction shown, in which the collar 21 is providedwith a flange 23,

- ".which is cut away or flattened at one side, as

indicated at 241. The base 8 is provided in'that one of its faces nearest the sleeve 9 and below said sleeve with a recess 25, which is adapted to receive the flange 23. When it is desired to raise and lock the drop-light, the pipe 5 is pushed up by hand through the sleeve 9 and is so .turned as to bring the flat or cut-away portion 24 of the collar 21 opposite the base 8.

When the parts are in this position, the droppipe can be raised so as to bring the collar 21 against the lower end of the sleeve 9, the flange .23 being then in the same plane as .the recess 25.

The drop-pipe is then turned on its axis, Whereupon the flange 23 will enter the recess 25, as shown in Figs. 3 and 1, and will lock the droplight in its raised position. 'When it is desired to lower the drop-light, the drop-pipe is turned until the flat portion 24: again comes opposite the recess 25, in which position the flange 23 is no longer engaged with said recess and the drop-light is free to move downward by gravity, its descent being controlled, of course, by hand. The collar 21 is provided with an upwardly-extending tapering or conical portion 26, which fits within the flaring lower end of the aperture of the sleeve 9.

It will be seen that the attachment as a whole is exceedingly simple and inexpensive, comprising no springs or moving parts and being free from frictionally-acting holding devices, which are liable to get out of order. It will also be noted that the fixture may be attached to almost any part of any chandelier or gasfixture,being readily connected thereto and as readily removed. The drop-light may be readily raised and lowered without any binding or friction and is firmly and positively supported in both its raised or lowered positions. Furthermore, the position of the light when either raised or lowered may be readily fixed or determined and may be adjusted and changed as circumstances may require.

Various modifications will readily suggest themselves. For instance, the sleeve 9 does not necessarily require the flaring or conical mouths, (shown inFig. 4,) and I have shown in Fig. 8 a construction in which the sleeve (here indicated by the reference-numeral 27) is provided internally with a narrow flange 28, having an aperture 29 to fit the drop-pipe 5, the remainder of the aperture of the sleeve being of larger diameter than said drop-pipe. This construction also serves to eflectually prevent anybinding between the sleeve and drop-pipe. It will of course be understood that the stop-collars are similarly modified as to those portions thereof which extend into the sleeve, the same being cylindrical, as indicated at 30, to fit the cylindrical portions of the sleeve-opening. I may, however, slightly bevel off the ends of the stop-collars, as indicated at 31, in order to facilitate their introduction into the sleeve. Various other modifications may be made without departing from the principle of my invention, and I therefore do not wish to be understood as limiting myself to the precise details hereinbefore set forth, and shown in the accompanying drawlugs.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, with a gas-fixture or chandelier, of a drop-light attachment therefor comprising a drop-pipe having a burner, a flexible tube for separably connecting said drop-pipe with the gas-fixture, and a guiding and supporting device comprising a clamp to engage the gas-fixture and a sleeve in which the drop-pipe may slide freely, said drop-pipe being provided with a stop-collar above the sleeve, and with a locking device to engage a fixed part when the drop-pipe is raised, substantially as described.

2. The combination, with a gas-fixture or chandelier, of a drop-light attachment therefor comprising a drop-pipe having a burner, a flexible tube for separably connecting said drop-pipe with the fixture, and a guiding and supporting device comprising a clamp to engage the gas-fixture and a sleeve in which the IIO drop-pipe may slide freely, said drop-pipe being provided with a stop-collar above the sleeve, and with a locking-collar below the sleeve adapted to engage the supporting device when the drop-pipe is raised and rotated, substantially as described.

3. The combination, with a gas-fixture or chandelier, of a drop-light attachment therefor comprising a drop-pipe having a burner, a flexible tube for separably connecting said pipe with the gas-fixture, and a guiding and supporting device comprising a clamp to engage the gas-fixture and a sleeve in which the drop-pipe may slide freely, said drop-pipe be ing provided with a stop-collar above the sleeve and a locking-collar below the sleeve, and said collars being longitudinally adjustable on the drop-pipe, substantially as described.

4. In a drop-light attachment of the character described, a guiding and supporting device comprising a base, a sleeve carried by said base, a fixed screw projecting from the base, a clamping-nut on said screw, and a clamping-arm free to tilt, turn and move longitudinally onsaid screw, substantially as described.

55. In a drop-light fixture of the character described, a guiding and supporting device comprising a clamp to engage the gas-fixture, and a guiding-sleeve having an aperture with enlarged ends, in combination with a droppipe having a stop-collar and a locking-collar thereon, located respectively above and below the guiding-sleeve and adapted to it the enlarged ends of the sleeve-aperture, substantially as described.

6. In a drop-light attachment of the character described, the combination with a guiding and supporting device comprising a base,

a clamp, and a guiding-sleeve, said base behaving a laterally-movable jaw arranged to receive and grip a portion of a straight or curved gas-fixture, and means for positively locking the drop-pipe in any longitudinal position relatively to the sleeve, substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

' ELMER E. GROVE.

Witnesses:

E. O. HAGAN, GERTRUDE YOUNG. 

